Traceback (most recent call last):                                                                                                                                     
  File "/usr/lib/python3.9/runpy.py", line 193, in _run_module_as_main                                                                                                  
    return _run_code(code, main_globals, None,                                                                                                                          
  File "/usr/lib/python3.9/runpy.py", line 86, in _run_code                                                                                                             
    exec(code, run_globals)                                                                                                                                             
  File "/home/fruch/Projects/scylla-dtest/.venv39/lib/python3.9/site-packages/nose/__main__.py", line 8, in <module>                                                    
    run_exit()                                                                                                                                                         
  File "/home/fruch/Projects/scylla-dtest/.venv39/lib/python3.9/site-packages/nose/core.py", line 118, in __init__                                                     
    unittest.TestProgram.__init__(              
  File "/usr/lib/python3.9/unittest/main.py", line 100, in __init__                                                                                  
    self.parseArgs(argv)                              
  File "/home/fruch/Projects/scylla-dtest/.venv39/lib/python3.9/site-packages/nose/core.py", line 179, in parseArgs                          
    self.createTests()                                 
  File "/home/fruch/Projects/scylla-dtest/.venv39/lib/python3.9/site-packages/nose/core.py", line 193, in createTests                                                   
    self.test = self.testLoader.loadTestsFromNames(self.testNames)                                                                                                        File "/home/fruch/Projects/scylla-dtest/.venv39/lib/python3.9/site-packages/nose/loader.py", line 481, in loadTestsFromNames                                          
    return unittest.TestLoader.loadTestsFromNames(self, names, module)                                                                                                 
  File "/usr/lib/python3.9/unittest/loader.py", line 220, in loadTestsFromNames                                                                                        
    suites = [self.loadTestsFromName(name, module) for name in names]                                       
  File "/usr/lib/python3.9/unittest/loader.py", line 220, in <listcomp>                                                                                                
    suites = [self.loadTestsFromName(name, module) for name in names]                                                                        
  File "/home/fruch/Projects/scylla-dtest/.venv39/lib/python3.9/site-packages/nose/loader.py", line 454, in loadTestsFromName                                          
    return LazySuite(                                                                                                                                                  
  File "/home/fruch/Projects/scylla-dtest/.venv39/lib/python3.9/site-packages/nose/suite.py", line 53, in __init__                                                     
    super(LazySuite, self).__init__()                                                                                                        
  File "/usr/lib/python3.9/unittest/suite.py", line 22, in __init__                                                                                                         self._tests = []                                                                                                                        
  File "/home/fruch/Projects/scylla-dtest/.venv39/lib/python3.9/site-packages/nose/suite.py", line 106, in _set_tests                                    
    if isinstance(tests, collections.Callable) and not is_suite:                                                                                       
AttributeError: module 'collections' has no attribute 'Callable'